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Finding the Fourth Proportional to 104,147.38, 156,154.85 and 88,357.85

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Solution

The fourth proportional to 104,147.38, 156,154.85 and 88,357.85 is: 132,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,147.38 : 156,154.85 = 88,357.85 : x
  2. Step 2: Convert to fraction form
    104,147.38/156,154.85 = 88,357.85/x
  3. Step 3: Cross multiply
    104,147.38x = 156,154.85 × 88,357.85
  4. Step 4: Simplify right side
    104,147.38x = 13,797,506,813.07
  5. Step 5: Solve for x
    x = 13,797,506,813.07/104,147.38
  6. Step 6: Final answer
    x = 132,480.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.